[cvs-nhc98] Rename 'rtb' to 'hat-trail' in Makefile.

malcolm: Tue Apr 17 13:25:06 CEST 2001 Update of /usr/src/master/nhc In directory hinken:/tmp/cvs-serv15313 Modified Files: Makefile Log Message: Rename 'rtb' to 'hat-trail' in Makefile.